<?php

if (! defined ( 'BASEPATH' ))
	exit ( 'No direct script access allowed' );
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package		CodeIgniter
 * @author		ExpressionEngine Dev Team
 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license		http://codeigniter.com/user_guide/license.html
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */

// ------------------------------------------------------------------------


/**
 * CodeIgniter Profiler Class
 *
 * This class enables you to display benchmark, query, and other data
 * in order to help with debugging and optimization.
 *
 * Note: At some point it would be good to move all the HTML in this class
 * into a set of template files in order to allow customization.
 *
 * @package		CodeIgniter
 * @subpackage	Libraries
 * @category	Libraries
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/general/profiling.html
 */
class CI_Profiler {
	
	protected $_available_sections = array ('benchmarks', 'get', 'memory_usage', 'post', 'uri_string', 'controller_info', 'queries', 'http_headers', 'session_data', 'config' );
	
	protected $_query_toggle_count = 25;
	
	protected $CI;
	
	// --------------------------------------------------------------------
	

	public function __construct($config = array()) {
		$this->CI = & get_instance ();
		$this->CI->load->language ( 'profiler' );
		
		if (isset ( $config ['query_toggle_count'] )) {
			$this->_query_toggle_count = ( int ) $config ['query_toggle_count'];
			unset ( $config ['query_toggle_count'] );
		}
		
		// default all sections to display
		foreach ( $this->_available_sections as $section ) {
			if (! isset ( $config [$section] )) {
				$this->_compile_ {$section} = TRUE;
			}
		}
		
		$this->set_sections ( $config );
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Set Sections
	 *
	 * Sets the private _compile_* properties to enable/disable Profiler sections
	 *
	 * @param	mixed
	 * @return	void
	 */
	public function set_sections($config) {
		foreach ( $config as $method => $enable ) {
			if (in_array ( $method, $this->_available_sections )) {
				$this->_compile_ {$method} = ($enable !== FALSE) ? TRUE : FALSE;
			}
		}
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Auto Profiler
	 *
	 * This function cycles through the entire array of mark points and
	 * matches any two points that are named identically (ending in "_start"
	 * and "_end" respectively).  It then compiles the execution times for
	 * all points and returns it as an array
	 *
	 * @return	array
	 */
	protected function _compile_benchmarks() {
		$profile = array ();
		foreach ( $this->CI->benchmark->marker as $key => $val ) {
			// We match the "end" marker so that the list ends
			// up in the order that it was defined
			if (preg_match ( "/(.+?)_end/i", $key, $match )) {
				if (isset ( $this->CI->benchmark->marker [$match [1] . '_end'] ) and isset ( $this->CI->benchmark->marker [$match [1] . '_start'] )) {
					$profile [$match [1]] = $this->CI->benchmark->elapsed_time ( $match [1] . '_start', $key );
				}
			}
		}
		
		// Build a table containing the profile data.
		// Note: At some point we should turn this into a template that can
		// be modified.  We also might want to make this data available to be logged
		

		$output = "\n\n";
		$output .= '<fieldset id="ci_profiler_benchmarks" style="border:1px solid #900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
		$output .= "\n";
		$output .= '<legend style="color:#900;">&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_benchmarks' ) . '&nbsp;&nbsp;</legend>';
		$output .= "\n";
		$output .= "\n\n<table style='width:100%'>\n";
		
		foreach ( $profile as $key => $val ) {
			$key = ucwords ( str_replace ( array ('_', '-' ), ' ', $key ) );
			$output .= "<tr><td style='padding:5px;width:50%;color:#000;font-weight:bold;background-color:#ddd;'>" . $key . "&nbsp;&nbsp;</td><td style='padding:5px;width:50%;color:#900;font-weight:normal;background-color:#ddd;'>" . $val . "</td></tr>\n";
		}
		
		$output .= "</table>\n";
		$output .= "</fieldset>";
		
		return $output;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Compile Queries
	 *
	 * @return	string
	 */
	protected function _compile_queries() {
		$dbs = array ();
		
		// Let's determine which databases are currently connected to
		foreach ( get_object_vars ( $this->CI ) as $CI_object ) {
			if (is_object ( $CI_object ) && is_subclass_of ( get_class ( $CI_object ), 'CI_DB' )) {
				$dbs [] = $CI_object;
			}
		}
		
		if (count ( $dbs ) == 0) {
			$output = "\n\n";
			$output .= '<fieldset id="ci_profiler_queries" style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
			$output .= "\n";
			$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_queries' ) . '&nbsp;&nbsp;</legend>';
			$output .= "\n";
			$output .= "\n\n<table style='border:none; width:100%;'>\n";
			$output .= "<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px'>" . $this->CI->lang->line ( 'profiler_no_db' ) . "</td></tr>\n";
			$output .= "</table>\n";
			$output .= "</fieldset>";
			
			return $output;
		}
		
		// Load the text helper so we can highlight the SQL
		$this->CI->load->helper ( 'text' );
		
		// Key words we want bolded
		$highlight = array ('SELECT', 'DISTINCT', 'FROM', 'WHERE', 'AND', 'LEFT&nbsp;JOIN', 'ORDER&nbsp;BY', 'GROUP&nbsp;BY', 'LIMIT', 'INSERT', 'INTO', 'VALUES', 'UPDATE', 'OR&nbsp;', 'HAVING', 'OFFSET', 'NOT&nbsp;IN', 'IN', 'LIKE', 'NOT&nbsp;LIKE', 'COUNT', 'MAX', 'MIN', 'ON', 'AS', 'AVG', 'SUM', '(', ')' );
		
		$output = "\n\n";
		
		$count = 0;
		
		foreach ( $dbs as $db ) {
			$count ++;
			
			$hide_queries = (count ( $db->queries ) > $this->_query_toggle_count) ? ' display:none' : '';
			
			$show_hide_js = '(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_queries_db_' . $count . '\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\'' . $this->CI->lang->line ( 'profiler_section_hide' ) . '\'?\'' . $this->CI->lang->line ( 'profiler_section_show' ) . '\':\'' . $this->CI->lang->line ( 'profiler_section_hide' ) . '\';">' . $this->CI->lang->line ( 'profiler_section_hide' ) . '</span>)';
			
			if ($hide_queries != '') {
				$show_hide_js = '(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_queries_db_' . $count . '\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\'' . $this->CI->lang->line ( 'profiler_section_show' ) . '\'?\'' . $this->CI->lang->line ( 'profiler_section_hide' ) . '\':\'' . $this->CI->lang->line ( 'profiler_section_show' ) . '\';">' . $this->CI->lang->line ( 'profiler_section_show' ) . '</span>)';
			}
			
			$output .= '<fieldset style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
			$output .= "\n";
			$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_database' ) . ':&nbsp; ' . $db->database . '&nbsp;&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_queries' ) . ': ' . count ( $db->queries ) . '&nbsp;&nbsp;' . $show_hide_js . '</legend>';
			$output .= "\n";
			$output .= "\n\n<table style='width:100%;{$hide_queries}' id='ci_profiler_queries_db_{$count}'>\n";
			
			if (count ( $db->queries ) == 0) {
				$output .= "<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px;'>" . $this->CI->lang->line ( 'profiler_no_queries' ) . "</td></tr>\n";
			} else {
				foreach ( $db->queries as $key => $val ) {
					$time = number_format ( $db->query_times [$key], 4 );
					
					$val = highlight_code ( $val, ENT_QUOTES );
					
					foreach ( $highlight as $bold ) {
						$val = str_replace ( $bold, '<strong>' . $bold . '</strong>', $val );
					}
					
					$output .= "<tr><td style='padding:5px; vertical-align: top;width:1%;color:#900;font-weight:normal;background-color:#ddd;'>" . $time . "&nbsp;&nbsp;</td><td style='padding:5px; color:#000;font-weight:normal;background-color:#ddd;'>" . $val . "</td></tr>\n";
				}
			}
			
			$output .= "</table>\n";
			$output .= "</fieldset>";
		
		}
		
		return $output;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Compile $_GET Data
	 *
	 * @return	string
	 */
	protected function _compile_get() {
		$output = "\n\n";
		$output .= '<fieldset id="ci_profiler_get" style="border:1px solid #cd6e00;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
		$output .= "\n";
		$output .= '<legend style="color:#cd6e00;">&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_get_data' ) . '&nbsp;&nbsp;</legend>';
		$output .= "\n";
		
		if (count ( $_GET ) == 0) {
			$output .= "<div style='color:#cd6e00;font-weight:normal;padding:4px 0 4px 0'>" . $this->CI->lang->line ( 'profiler_no_get' ) . "</div>";
		} else {
			$output .= "\n\n<table style='width:100%; border:none'>\n";
			
			foreach ( $_GET as $key => $val ) {
				if (! is_numeric ( $key )) {
					$key = "'" . $key . "'";
				}
				
				$output .= "<tr><td style='width:50%;color:#000;background-color:#ddd;padding:5px'>&#36;_GET[" . $key . "]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#cd6e00;font-weight:normal;background-color:#ddd;'>";
				if (is_array ( $val )) {
					$output .= "<pre>" . htmlspecialchars ( stripslashes ( print_r ( $val, true ) ) ) . "</pre>";
				} else {
					$output .= htmlspecialchars ( stripslashes ( $val ) );
				}
				$output .= "</td></tr>\n";
			}
			
			$output .= "</table>\n";
		}
		$output .= "</fieldset>";
		
		return $output;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Compile $_POST Data
	 *
	 * @return	string
	 */
	protected function _compile_post() {
		$output = "\n\n";
		$output .= '<fieldset id="ci_profiler_post" style="border:1px solid #009900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
		$output .= "\n";
		$output .= '<legend style="color:#009900;">&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_post_data' ) . '&nbsp;&nbsp;</legend>';
		$output .= "\n";
		
		if (count ( $_POST ) == 0) {
			$output .= "<div style='color:#009900;font-weight:normal;padding:4px 0 4px 0'>" . $this->CI->lang->line ( 'profiler_no_post' ) . "</div>";
		} else {
			$output .= "\n\n<table style='width:100%'>\n";
			
			foreach ( $_POST as $key => $val ) {
				if (! is_numeric ( $key )) {
					$key = "'" . $key . "'";
				}
				
				$output .= "<tr><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>&#36;_POST[" . $key . "]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#009900;font-weight:normal;background-color:#ddd;'>";
				if (is_array ( $val )) {
					$output .= "<pre>" . htmlspecialchars ( stripslashes ( print_r ( $val, TRUE ) ) ) . "</pre>";
				} else {
					$output .= htmlspecialchars ( stripslashes ( $val ) );
				}
				$output .= "</td></tr>\n";
			}
			
			$output .= "</table>\n";
		}
		$output .= "</fieldset>";
		
		return $output;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Show query string
	 *
	 * @return	string
	 */
	protected function _compile_uri_string() {
		$output = "\n\n";
		$output .= '<fieldset id="ci_profiler_uri_string" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
		$output .= "\n";
		$output .= '<legend style="color:#000;">&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_uri_string' ) . '&nbsp;&nbsp;</legend>';
		$output .= "\n";
		
		if ($this->CI->uri->uri_string == '') {
			$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>" . $this->CI->lang->line ( 'profiler_no_uri' ) . "</div>";
		} else {
			$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>" . $this->CI->uri->uri_string . "</div>";
		}
		
		$output .= "</fieldset>";
		
		return $output;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Show the controller and function that were called
	 *
	 * @return	string
	 */
	protected function _compile_controller_info() {
		$output = "\n\n";
		$output .= '<fieldset id="ci_profiler_controller_info" style="border:1px solid #995300;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
		$output .= "\n";
		$output .= '<legend style="color:#995300;">&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_controller_info' ) . '&nbsp;&nbsp;</legend>';
		$output .= "\n";
		
		$output .= "<div style='color:#995300;font-weight:normal;padding:4px 0 4px 0'>" . $this->CI->router->fetch_class () . "/" . $this->CI->router->fetch_method () . "</div>";
		
		$output .= "</fieldset>";
		
		return $output;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Compile memory usage
	 *
	 * Display total used memory
	 *
	 * @return	string
	 */
	protected function _compile_memory_usage() {
		$output = "\n\n";
		$output .= '<fieldset id="ci_profiler_memory_usage" style="border:1px solid #5a0099;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
		$output .= "\n";
		$output .= '<legend style="color:#5a0099;">&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_memory_usage' ) . '&nbsp;&nbsp;</legend>';
		$output .= "\n";
		
		if (function_exists ( 'memory_get_usage' ) && ($usage = memory_get_usage ()) != '') {
			$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>" . number_format ( $usage ) . ' bytes</div>';
		} else {
			$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>" . $this->CI->lang->line ( 'profiler_no_memory' ) . "</div>";
		}
		
		$output .= "</fieldset>";
		
		return $output;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Compile header information
	 *
	 * Lists HTTP headers
	 *
	 * @return	string
	 */
	protected function _compile_http_headers() {
		$output = "\n\n";
		$output .= '<fieldset id="ci_profiler_http_headers" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
		$output .= "\n";
		$output .= '<legend style="color:#000;">&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_headers' ) . '&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_httpheaders_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\'' . $this->CI->lang->line ( 'profiler_section_show' ) . '\'?\'' . $this->CI->lang->line ( 'profiler_section_hide' ) . '\':\'' . $this->CI->lang->line ( 'profiler_section_show' ) . '\';">' . $this->CI->lang->line ( 'profiler_section_show' ) . '</span>)</legend>';
		$output .= "\n";
		
		$output .= "\n\n<table style='width:100%;display:none' id='ci_profiler_httpheaders_table'>\n";
		
		foreach ( array ('HTTP_ACCEPT', 'HTTP_USER_AGENT', 'HTTP_CONNECTION', 'SERVER_PORT', 'SERVER_NAME', 'REMOTE_ADDR', 'SERVER_SOFTWARE', 'HTTP_ACCEPT_LANGUAGE', 'SCRIPT_NAME', 'REQUEST_METHOD', ' HTTP_HOST', 'REMOTE_HOST', 'CONTENT_TYPE', 'SERVER_PROTOCOL', 'QUERY_STRING', 'HTTP_ACCEPT_ENCODING', 'HTTP_X_FORWARDED_FOR' ) as $header ) {
			$val = (isset ( $_SERVER [$header] )) ? $_SERVER [$header] : '';
			$output .= "<tr><td style='vertical-align: top;width:50%;padding:5px;color:#900;background-color:#ddd;'>" . $header . "&nbsp;&nbsp;</td><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>" . $val . "</td></tr>\n";
		}
		
		$output .= "</table>\n";
		$output .= "</fieldset>";
		
		return $output;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Compile config information
	 *
	 * Lists developer config variables
	 *
	 * @return	string
	 */
	protected function _compile_config() {
		$output = "\n\n";
		$output .= '<fieldset id="ci_profiler_config" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
		$output .= "\n";
		$output .= '<legend style="color:#000;">&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_config' ) . '&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_config_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\'' . $this->CI->lang->line ( 'profiler_section_show' ) . '\'?\'' . $this->CI->lang->line ( 'profiler_section_hide' ) . '\':\'' . $this->CI->lang->line ( 'profiler_section_show' ) . '\';">' . $this->CI->lang->line ( 'profiler_section_show' ) . '</span>)</legend>';
		$output .= "\n";
		
		$output .= "\n\n<table style='width:100%; display:none' id='ci_profiler_config_table'>\n";
		
		foreach ( $this->CI->config->config as $config => $val ) {
			if (is_array ( $val )) {
				$val = print_r ( $val, TRUE );
			}
			
			$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>" . $config . "&nbsp;&nbsp;</td><td style='padding:5px; color:#000;background-color:#ddd;'>" . htmlspecialchars ( $val ) . "</td></tr>\n";
		}
		
		$output .= "</table>\n";
		$output .= "</fieldset>";
		
		return $output;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Compile session userdata
	 *
	 * @return 	string
	 */
	private function _compile_session_data() {
		if (! isset ( $this->CI->session )) {
			return;
		}
		
		$output = '<fieldset id="ci_profiler_csession" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
		$output .= '<legend style="color:#000;">&nbsp;&nbsp;' . $this->CI->lang->line ( 'profiler_session_data' ) . '&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_session_data\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\'' . $this->CI->lang->line ( 'profiler_section_show' ) . '\'?\'' . $this->CI->lang->line ( 'profiler_section_hide' ) . '\':\'' . $this->CI->lang->line ( 'profiler_section_show' ) . '\';">' . $this->CI->lang->line ( 'profiler_section_show' ) . '</span>)</legend>';
		$output .= "<table style='width:100%;display:none' id='ci_profiler_session_data'>";
		
		foreach ( $this->CI->session->all_userdata () as $key => $val ) {
			if (is_array ( $val )) {
				$val = print_r ( $val, TRUE );
			}
			
			$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>" . $key . "&nbsp;&nbsp;</td><td style='padding:5px; color:#000;background-color:#ddd;'>" . htmlspecialchars ( $val ) . "</td></tr>\n";
		}
		
		$output .= '</table>';
		$output .= "</fieldset>";
		return $output;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Run the Profiler
	 *
	 * @return	string
	 */
	public function run() {
		$output = "<div id='codeigniter_profiler' style='clear:both;background-color:#fff;padding:10px;'>";
		$fields_displayed = 0;
		
		foreach ( $this->_available_sections as $section ) {
			if ($this->_compile_ {$section} !== FALSE) {
				$func = "_compile_{$section}";
				$output .= $this->{$func} ();
				$fields_displayed ++;
			}
		}
		
		if ($fields_displayed == 0) {
			$output .= '<p style="border:1px solid #5a0099;padding:10px;margin:20px 0;background-color:#eee">' . $this->CI->lang->line ( 'profiler_no_profiles' ) . '</p>';
		}
		
		$output .= '</div>';
		
		return $output;
	}
}

// END CI_Profiler class

/* End of file Profiler.php */
/* Location: ./system/libraries/Profiler.php */